Recently been through about 3 radiators and fans etc - initial problem thought to be the plastic cowling around the fan which was getting dragged into the fan and then smashing the radiator. Problem then found to be the water pump was not running true so caused belt movement which would lead to the broken fan and rad. Water pump changed however the vehicle is fine at high revs and when stationary it can be revved as hard and as fast as possible, although when on the move and kickdown or hard accelerating is applied above 3,000 rpm results in a squeal similar to a belt slipping ( which is the same noise as what it made before it smashed the fan and rad up). Any ideas??